Pipeline Time Outs

[kevsmith]

The hard coded 60 sec pipeline execution timeout has outlived its usefulness. Let's expose the timeout as a configuration entry and default it to 60 secs.

An ideal config would support one timeout value for user initiated pipelines and another for trigger initiated ones. MVP is a simple global value which applies to pipelines started by users and triggers.

Multiple timeout values (Ideal)

config :cog, Cog.Command.Pipeline,
  interactive_timeout: {120, :sec},
  trigger_timeout: {300, :sec}

Single global value (MVP)

config :cog, Cog.Command.Pipeline,
  timeout: {120, :sec}